RAM Failure

Some random application crashes, kernel panics, and failures in simple programs that have worked for a long time, it is possible you are experiencing RAM failure.

RAM starts going bad, what you write to an address is not what you get back when you read it later. This causes random corruption of data, programs that crash, and even kernel "oops"es and kernel panics. If it's only a small amount of RAM that is corrupt then few programs will fail, but something will eventually fail when that memory gets used.

Some kernel panics may bring the system to a halt. If they reoccur soon after the system is off for a while you can be more confident it isn't a heat-related issue.
Even small programs (like ls) may fail if they happen to use the affected memory. If they work once but then fail on a different attempt, this can be a sign of memory failure, since the memory used will be different from run to run.

Laptop randomly turns off

This is often due to:

• AC power adaptor sensing an overload of power drain
• Overheating processor due to a build of internal dust (clogged fan)
• AC power adaptor not able to sustain normal power needs (faulty power adaptor)
• Battery overheating, due to internal battery fault, or charging levels
• Intermittent short circuit or open connection (check condition of power leads)

On older Laptops, the most common reason is poor cooling. Try going somewhere air-conditioned and see if that helps. Inspect the areas near the internal cooling fan; see if there is a build up of dust fibres. Easy way to check this; with the unit running, feel the flow of air from the cooling outlet(s) - is the airflow very low? If yes, and the unit is at normal operation temperature, this may indicate the internal cooling system is partially clogged.

Fixing Common Laptop Problems

Liquid Spills on Laptop

Liquid intrusion can cause the following types of laptop damage:

• Short circuit due to conductive nature of wet liquid (problem may clear as liquid dries)
• Short circuit due to dried liquid residue
• Corrosion occurs (particularly volatile with some acidic soft drinks - Coke)
• Electronic components damaged by above short circuits

Immediately when a spill occurs, turn off the laptop, invert the laptop and leave the unit upside down (drainage) for at least 20-30 minutes. Then, remove any attached leads, remove the power unit and battery, and allow the unit to air-dry overnight.

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